We have created a multi-site quantitative MRI dataset, part of it is currently hosted on OSF. There is a single folder, which encloses 32 sub-folders (one for each site). Each sub-folder is a BIDS-compatible dataset.
We would like to use the nice features of datalad with this dataset (e.g., being able to fetch individual subjects, track changes, etc.), however it is unclear how we can combine all those BIDS datasets into a single project. We would have to have easy “one-liner” commands for our users to be able to download all the datasets at once. Our original plan was to upload these data on OpenNeuro (and reference it through datalad), however there doesn’t seem be a feature allowing to upload multiple BIDS datasets into a single project (see below a copy/paste of the ticket opened at OpenNeuro).
If anyone has some tips for us, that would be appreciated,
Copy/paste of the ticket with OpenNeuro (sorry for the messy format, but pdf upload is not possible here, and OpenNeuro tickets are private…)
Hi Alexandru, Thank you for your quick reply and information. If there is a natural way to split the datasets up (if applicable, potentially under a common domain investigated for each or some other defining feature that separates the different sets). The datasets can all reference each other in the references and links field of the dataset_description.json file (https://bids-specification.readthedocs.io/en/stable/03- modality-agnostic-files.html#dataset_descriptionjson). That's correct, OpenNeuro expects the datasets are in the BIDS format and pass validation before uploading. Regarding the datalad perspective for aggregation, I am not sure if this is possible. It may be good to raise it with Datalad. Thank you for submitting a feature upvote suggestion for this! Thank you, Franklin Ticket: https://openneuro.freshdesk.com/helpdesk/tickets/246 On Mon, 6 May at 2:28 PM , Alexandru Foias <email@example.com> wrote: Hi Franklin, Our specific study include multiple datasets with different subjects. The idea would be to aggregate all the datasets under a single project, but my understanding is that the open neuro platform expects a bids dataset when you upload it. Please correct me if i'm wrong. Is there another solution to aggregate the datasets in a single project from the datalad perspective ? Thanks, Alexandru From: "OpenNeuro" <firstname.lastname@example.org> To: "alexandru foias" <email@example.com> Sent: Monday, May 6, 2019 1:19:13 PM Subject: Re: multiple dataset in a single project Hi Alexandru, Thank you for your message. Unfortunately, we do not currently have this feature supported. May I ask what your use case is? Are you trying to download multiple datasets at the same time? Thank you, Franklin Ticket: https://openneuro.freshdesk.com/helpdesk/tickets/246 On Mon, 6 May at 12:31 PM , Alexandru Foias <firstname.lastname@example.org> wrote: Hi, I would like to know if it's possible to compile multiple datasets in a single project. Regards, Alexandru